Question

amistree, attach file I need help

Answer 1

im here....somewhere

Answer 2

go get 'em

Answer 3

right, a frustrum is a mesa; and lateral area is side surface area

Answer 4

28) 8^2 +?

Answer 5

so 8^2 tells us there are 4 sides

Answer 6

8 tall and 4 wide form the inner right tri; so the face height of each side is sqrt(64+16)

Answer 7

8 tall is sland heigh?

Answer 8

8 tall is height of pyramid, so thats thru the center

Answer 9

sqrt(16*5) = 4sqrt(5) for a face and 8 wide /2 = 16sqrt(5) if i see it right

Answer 10

do i find erea base and + 4 erea triangle on the top?

Answer 11

yes; base area is 64; thats given in every answer

Answer 12

each face has an area of 16 sqrt(5); s0 4 ties that = 64sqrt(5)

Answer 13

can u tel me the answer c is correct?

Answer 14

go with B is my best figuring

Answer 15

22)?

Answer 16

I don't know the side,it 4?

Answer 17

the area of a iso trap is (b+b)h/2

4[(4+2)3/2]

Answer 18

36 is what im thinking on 22)

Answer 19

yes but this picture all not equal

Answer 20

A bas + A top + 2(area side)

Answer 21

it doesnt really give a clear indication of the measure of sides does it

Answer 22

bottom of 4; top of 2; and face height of 3

area of the face = (4+2)3/2 = 6(3)/2 = 9 right?

Answer 23

4 face = 9*4 = 36

Answer 24

(4^2)+(2^2)+ [2(2+4)*3)/2)]?

Answer 25

no; this isnt surface area; they only want the lateral; or side; area

Answer 26

top and bottom base areas are not a part of lateral area

Answer 27

there are 6 sides to this thing; but they only want 4 sides; ignore the top and bottom

Answer 28

4 side top and 4 side bottom ?
top each side is 2
bottom each side is 4?

Answer 29

yes; and face height is 3; that area of each face then is:

(4+2)3/2 = 9

Answer 30

4 sides * 9 area = 36 lateral area

Answer 31

I see thank

Answer 32

youre welcome :)